payshencec21
payshencec21
28-05-2018
Mathematics
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Please help asap 35 pts
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trainboxcar20
trainboxcar20
28-05-2018
D. 6 meters. If you add 7 meters to that, it becomes 13 meters for all sides. 13^2=169m^2. So, 6 meters was the original length.
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Аноним
Аноним
28-05-2018
Let original side length = x Then:-
(x + 7)^2 = 169
x + 7 = 13
x = 6 m
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